ST23YR18 Dual contactless smartcard MCU with 18 Kbytes EEPROM, enhanced security, cryptoprocessor and optimized RF performance
The ST23YR18 is a serial access microcontroller specifically designed for secure smartcard applications. It is based on an enhanced 8/16-bit CPU core with 16 Mbytes of linear addressing space and is manufactured using advanced ST CMOS EEPROM technology. The device includes an RF interface compatible with ISO 14443-B and Innovatron standards, enabling contactless communication up to 848 Kbits/s.
| EEPROM Capacity | 18 Kbytes |
|---|---|
| User RAM | 4 Kbytes |
| User ROM | 230 Kbytes |
| CPU Clock Frequency | up to 29 MHz |
| External Clock Frequency | up to 10 MHz |
| Supply Voltage | 3V and 5 V |
| RF Frame Size | up to 512 bytes |
| Data Retention | 30-year at 25° C |
| Erase/Write Cycles | 500,000 typical |
| Program Time | 1 to 64 bytes in 2 ms |
The device complies with ISO 14443 type B, Innovatron (type B'), and PayPass standards.
The CPU clock frequency can reach up to 29 MHz.
Yes, it features an enhanced NESCRYPT crypto-processor for public key cryptography and a hardware security enhanced DES accelerator.
The first release of this document was on 17-Dec-2008.